Thermowells | <p>Thermowells, sometimes called pockets or thermo-pockets, are a specialised protection tube or vessel designed to hold and to protect a thermocouple or rtd temperatue sensor against attack from the chemicals or harmful atmosphere of a process by encasing the temperature probe in a protective sheath.</p><p>They maintain the integrity of the process and also allow for temperature sensors to be removed for calibration or replacement without needing to drain the system. By providing a protective environment, they also reduce the risks of contamination and degradation of the sensor thereby improving its longevity.</p>